Use rpmfactory-tempest-plugin conf for tempest plugins
Use rpmfactory-tempest-plugin conf for tempest plugins

* rdoinfo provides conf field to indentify specific type of packages.
  rpmfactory-tempest-plugin conf[1.] is added in rdoinfo to easily identify
  the tempest plugins

* This patch updates the conf to rpmfactory-tempest-plugin for all tempest
  plugin.

* Removed maintainers for patrole tempest plugin as it gets inherited from
  conf itself

* [1.] https://review.rdoproject.org/r/#/c/7150/

Change-Id: I1a843872a9aea57b80272f14578243cff70c2e8e

redhat-openstack/rdoinfo,javierpena/rdoinfo